Setting Resolution causing screen to displace?

I’m using the “execute command” node from my option screen’s widget_bp to set the resolution & window mode like this.
r.setres 1920x1080w
Every other resolution I’ve tried works perfectly in windowed mode so far however setting it to 1080p it becomes very off-centered
from the window frame as shown in this screen-shot:
https://lh4.googleusercontent.com/Ra…uO=w1600-h1047

Oddly, simply maximizing & restoring the window fixes it.
Is there a way in BP to either manually set the size of the actual window to match the view-port (Hopefully I’m using these terms correctly?)
or alternatively can I somehow make the blueprints maximize the window as if the player hit the button on the tool bar,
as this seems to fix it but I don’t want to make players do this manually because it leaves them with guess-work & looks unprofessional?

Additionally I’ve had similar issues setting fullscreen mode.
I am currently setting fullscreen mode with the command “r.setres 1920x1080wf”.
Simply placing an “F” at the end as I’ve seen suggested has led to a lot of problems, “WF” mostly works however
it ignores any numbers I type into the command & I think it is instead using my desktop’s default resolution?

Which looks fine,mind you but beats the purpose of selecting a resolution.

Most recently I tried a node set-up like this:
https://lh5.googleusercontent.com/OX…T6=w1600-h1047
However it causes a VERY similar looking off-set problem to the first screen shot.
I am unable to screen shot this behavior though, as it actually appears to fit the screen perfectly in any images I take of it.

I’m not sure but my guess is that it is off-setting the resolution for my entire computer,
I tested this by opening my task-manager while my game was full-screened & indeed the screen that came up was offset very similarly
until I either close the game or try to switch active windows.

I’m at a complete loss for how to handle this. @_@

Any advice,please?

Ps. This was all tested in “stand-alone game” mode, if that matters.
Thanks in advance. =)